机械制造专业 汽车球笼式等速万向节设计和实现
40页1、汽车球笼式等速万向节设计摘要速度驱动轴对于轿车来说是一个非常关键的部位。它直接关系到汽车的稳定性及力的传动性能。等速驱动轴的结构强度直接影响到它的性能与寿命,为实现综合的最佳标准化效果,需进行系列化设计。首先确定了汽车球笼式等速万向节的结构主参数及其上、下限,列出了若干基本参数,然后选择符合汽车要求的球笼式等速万向节进行设计,进而对产品的基本参数进行系列化设计,并阐述了产品系列化设计的作用。其主要研究工作如下:本文以国内的某种汽车作为研究对象,为这种型号的轿车选取前置的驱动球笼式等速万向节,选取的万向节在性能方面满足轿车的使用寿命要求,在结构上满足强度刚度性能。并对其基本参数加以设计和改进,再运用CATIA软件与ADAMS软件联合仿真分析对本文所设计的球笼式等速万向节传动轴运动学与动力学分析,检验了该球笼式等速万向节传动轴结构设计的正确性,并验证了结构设计的合理性,并有助于改进产品。关键词:球笼式等速万向节;参数化设计;动力学分析AbstractThe speed drive shaft is a key part of the car. It is directly related
2、to the stability of the vehicle and force transmission performance. Constant speed of the drive shaft structure strength directly affect its performance and life, and the intensity of the constant speed drive shaft structure depends on the transmission parts in the process of the internal contact stress distribution, size, however the traditional test method cannot determine the contact stress of complex structure, so that by finite element numerical method to accurately simulate the transmissio
3、n process is particularly important, also is the main method of design and development process. In this paper, on the basis of related literature at home and abroad are reviewed. The research of ball cage patterned constant speed universal joint as the research object, to parametric design of products, is currently widely used two kinds of raceway cross section of universal joint kinematics and dynamics, the respect such as the static contact stress was studied, and the race of universal joint i
4、s optimized to improve. The research work is as follows:Based on a domestic manufacturer before the engine front drive car constant speed drive shaft of ball cage patterned constant speed universal joint as the research object, using 3 d reconstruction technology, using three coordinate measuring machine parts size precise scanned into the computer, then using CATIA software combining ADAMS software and the simulation analysis of this paper, the design of ball cage patterned constant speed unive
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